With Amazon's recent entry into consumer cloud storage, we've got quite a few competitors offering great and varying options—but which one is the best? Here's a look at Windows Live SkyDrive, Dropbox, and Amazon Cloud Drive, and our top pick for storing you files in the cloud.

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All these services are a little bit different, so they're hard to compare one-for-one. We have our preference, but make sure to check out each service individually as one may suit you better than another. If you want to see the verdict on all the services at a glance, scroll down to the bottom of the page for a quick look. For a more in-depth look at every service, just keep reading.

Windows Live SkyDrive

The Good

The feature set is simple and concise. Windows Live SkyDrive gives you 25GB for free. It integrates with Windows Live Mail (a.k.a. Hotmail) and other Windows Live services, like the online version of Microsoft Office. It comes with nice viewing options for photos and videos, and makes it easy to view and share your files across platforms.

The Bad

The feature set is simple and concise. Aside from a massive amount of free space, you don't get much with SkyDrive. It's pretty much just storage. If you need more than 25GB, you'll need to look elsewhere because what you get for free is all you get in general. Additionally, while you do have 25GB of space, you only have 50MB per file. If you want to upload a file larger than 50MB you're out of luck, which is a big disadvantage for the service.

The Verdict

SkyDrive is essentially 25GB of storage—for free. While it doesn't have the most compelling feature set if you're not using it with Windows Live Mail and the online version of Microsoft Office, it is a whole lot of space for a whole lot of nothing. Value-wise, you can't really beat it...unless you have files greater than 50MB.

Dropbox

The Good

Dropbox only gives you 2GB for free, but you can bring that up to 16GB by referring your friends, family, and complete strangers you can coerce into signing up using your referral URL. For $100 or $200 per year, Dropbox will up your storage to 50GB or 100GB, respectively, and that's not including your referrals (which are doubled when you're a paid customer). Dropbox storage not only includes your stored files, but also keeps copies of deleted files in case you want to get them back. For an extra fee you can keep an unlimited number of copies for easy recovery.

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The best part of Dropbox, however, is that it syncs to all your computers. If you keep everything important in your Dropbox, that means you've got a backup of all your important files automatically by virtue of them being on multiple machines as well as up in the cloud. If you are syncing between machines, Dropbox will first sync files over your local connection first, making sync a lot faster when all your computers are on the same network. Dropbox has apps for pretty much every mobile device, so you can easily access your files from virtually anywhere. Dropbox also makes file sharing easy as you can simply right click to share virtually anything in your Dropbox or share it from the mobile app.

The Bad

If you need more than 100GB of storage (or, really, 132GB with referrals), you're sort of out of luck. Unless you want to sign up for a team plan (which starts at $796/year for 350GB), you're stuck with a 100GB cap and that may be too low for people who have a lot of stuff they want to store. Dropbox also does not let you store files outside of your Dropbox (although you can work around that limitation). You also won't want to use Dropbox for backing up or syncing any complex files or system files to avoid conflicts that could cause serious problems. For example, syncing iTunes with Dropbox across multiple machines can cause problems with your library since iTunes saves your library in a single file. (We have a workaround for this, too.)

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The Verdict

Dropbox is really great if your needs include syncing and you can limit your storage to 100GB, but if you need more space or just don't want to pay for it, you may want to look into another option.

Amazon Cloud Drive

The Good

Amazon's offered storage for awhile now, with their Simple Storage Service (S3), but that was geared towards developers. This is relevant because developers have not only been using S3 to store tons of big files you upload to their webapps regularly, but some have even created cloud storage services built on top of Amazon S3. Amazon's launch of Cloud Drive is really an extension of their long-implemented storage service and that should give you a good idea of its reliability.

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Feature-wise, Amazon Cloud Drive wins for music lovers because of its companion app, Amazon Cloud Player. Cloud Player is available as a native Android app and also as a webapp. This is great if you want constant access to your music and have an always-connected device like a 3G smartphone. Cloud Drive offers 5GB of free storage, which is a little on the slim side. Fortunately, Amazon is offering 20GB of storage for a year if you buy an MP3 album, which means you should save at least $10 off the cost of a 20GB account. Amazon has plenty of storage tiers, offering anywhere from the free 5GB to an entire terabyte of cloud storage. As a comparison, you'll get twice the space on Cloud Drive as you would on Dropbox for the same money.

The Bad

While there's a native app available for Android, there's nothing for iOS. You can't even use the webapp in Safari without forcing Cloud Player to load the desktop version of the webapp. This is disappointing for iOS users, but it's worth noting that Apple's held up app approval for competition before and it wouldn't be a surprise if they were holding back Amazon here.

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While Amazon has the ability to scale, offers a music player, and does all of this for half the cost of Dropbox, it still can't do much of what Dropbox can do all by itself. If you're looking for a bunch of features beyond a music player, they're not quite here yet.

The Verdict

If music is your thing, Amazon's got a well-priced service that's still a little rough around the edges. You might want to hold off if your priorities don't include a cloud-based music player and massive amounts of cheap online storage.

What's the Best Cloud Storage Option?

Good question. What's really great about all these products is that they're not identical and offer varying sets of features. What we've realized is that it's not so much about which one's the best, but rather which one's the best for you. If you need to sync, go with Dropbox. If you want to pay absolutely nothing and get a ton of storage (25GB), go with Windows SkyDrive. If you want reasonably-priced, tiered storage that's geared towards playing your music from anywhere, Amazon Cloud Drive is for you. While you could probably rig any one of these services to basically act like the others, they each have their strengths and weaknesses and you'll have to decide which strengths are more important to you.

Personally—and I think this goes for everyone at Lifehacker—I love Dropbox. If you have more than one computer (as it seems the very large majority of you do), it's almost a necessity. If there's a winner in my book, it's definitely Dropbox. That said, these are all great cloud storage services that aim to meet varying needs. If you choose based on what matters most to you, chances are you won't be disappointed.